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Animal Sciences

2003

Articles 1 - 10 of 10

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Predicting Fish Species Diversity In Lotic Freshwaters Of Greece, Eugene G. Maurakis, David V. Grimes Oct 2003

Predicting Fish Species Diversity In Lotic Freshwaters Of Greece, Eugene G. Maurakis, David V. Grimes

Virginia Journal of Science

Objectives were to test the hypothesis that stream order and stream width alone account for species diversity in drainages of Greece, and to create a mathematical model that predicts fish diversity in small and medium sized freshwater streams in the southern Balkan Peninsula in accord with the stream classification system proposed by the European Environmental Agency (EEA). Thirty-seven species of fishes in 12 families (Petromyzontidae, Anguillidae, Cyprinidae, Moronidae, Centrarchidae, and Blenniidae) were collected in five stream orders (1-5) from 19 river drainages in Greece in 1993 and from 2000-2002. Numbers of species were significantly correlated with stream order (+), width …


Identification Key To Fishes In Fresh Waters Of Greece, Eugene G. Maurakis, Panos S. Economidis Oct 2003

Identification Key To Fishes In Fresh Waters Of Greece, Eugene G. Maurakis, Panos S. Economidis

Virginia Journal of Science

The European Environmental Agency formulated a biodiversity initiative in 1996 specifying a freshwater stream-monitoring program to inventory, identify and describe aquatic and terrestrial species in European Union countries. With one of the richest freshwater ichthyofaunas in Europe (126 fish taxa: 97 species and 29 subspecies of primary or secondary freshwater fishes), Greece has two extinct fish species, five listed as critically endangered, and 29 considered endangered and/or vulnerable. There are, however, no published identification guides that are available for identifying fish specimens from fresh waters in Greece. We present an English translation of the only available identification key (in Greek) …


Novel Object Test: Examining Nociception And Fear In The Rainbow Trout, Lynne U. Sneddon, Victoria A. Braithwaite, Michael J. Gentle Oct 2003

Novel Object Test: Examining Nociception And Fear In The Rainbow Trout, Lynne U. Sneddon, Victoria A. Braithwaite, Michael J. Gentle

Veterinary Science and Medicine Collection

This study aimed to assess fear responses to a novel object while experiencing a noxious event to determine whether nociception or fear will dominate attention in a fish in novel object testing paradigm. This experimentally tractable animal model was used to investigate (1) the degree of neophobia to a novel object while experiencing noxious stimulation, (2) the response of the fish after removing the fear-causing event by using a familiar object, and (3) the effects of removing the nociceptive response by morphine administration and examining the response to a novel object. Control animals displayed a classic fear response to the …


Draft Plan Of Management For The Proposed Point Quobba Fish Habitat Protection Area., Department Of Fisheries Aug 2003

Draft Plan Of Management For The Proposed Point Quobba Fish Habitat Protection Area., Department Of Fisheries

Fisheries management papers

Point Quobba is a popular site for locals and tourists for beach activities, fishing and snorkelling, and as a place for children to learn to swim and gain an awareness of the marine environment. The marine life and habitats of the area are of considerable scientific and recreational interest and are highly valued in the local community. However, they are at risk from their high level of use and from conflict between users due to their proximity to popular tourism, boat ramp, camping and settlement areas on-shore.


Plan Of Management For The Miaboolya Beach Fish Habitat Protection Area, Shane Alymore, Sarah Anderson Jul 2003

Plan Of Management For The Miaboolya Beach Fish Habitat Protection Area, Shane Alymore, Sarah Anderson

Fisheries management papers

The aim of this management plan is to protect and rehabilitate the aquatic habitat of Miaboolya Beach, the associated mangrove ecosystem, and involve the community in their management. By setting the area aside as a FHPA, the Department of Fisheries has established a framework to promote and actively conserve all the habitats within the Miaboolya system, as described in Section 3 of this document.


Modeling Bird Species Occurrence In Current And Future Landscapes, Stephen Nicholas Matthews May 2003

Modeling Bird Species Occurrence In Current And Future Landscapes, Stephen Nicholas Matthews

Electronic Theses and Dissertations

With mounting evidence that global temperatures have increased significantly over the last century and the projections of greater changes in climate by the end of this century, understanding the potential consequences of these changes for species is essential to conservation efforts. Here I evaluate the potential response of birds to projected climate change by using regression tree analysis to create models of species distributions under current conditions from Breeding Bird Survey data and then project these models onto General Circulation Model (GCM) scenarios of global climate change. Before modeling species responses to climate change, I selected seventeen bird species to …


The Mayfly Newsletter, Peter M. Grant May 2003

The Mayfly Newsletter, Peter M. Grant

The Mayfly Newsletter

The Mayfly Newsletter is the official newsletter of the Permanent Committee of the International Conferences on Ephemeroptera.


The Bold And The Shy: Individual Differences In Rainbow Trout, L. U. Sneddon Apr 2003

The Bold And The Shy: Individual Differences In Rainbow Trout, L. U. Sneddon

Aquaculture Collection

Boldness and shyness were investigated as ‘personality’ traits in hatchery-reared rainbow trout Oncorhynchus mykiss. Bold fish spent more time in an open area and were more active than shy fish and these behaviours could be used as indicators of boldness and shyness. These differences were related to learning ability in a simple conditioning task. Bold fish learned the task more quickly than shy fish.


An Ecological Study Of The Spotted Salamander, Ambystoma Maculatum, And Jefferson Salamander, A. Jeffersonianum, In West Virginia, Seth J. Myers Jan 2003

An Ecological Study Of The Spotted Salamander, Ambystoma Maculatum, And Jefferson Salamander, A. Jeffersonianum, In West Virginia, Seth J. Myers

Theses, Dissertations and Capstones

The movements of Spotted Salamanders, Ambystoma maculatum, and Jefferson Salamanders, A. jeffersonianum, in and out of an ephemeral wetland in West Virginia were monitored for one breeding season using a drift fence lined with funnel traps. Significant movements of A. jeffersonianum coincided with rainfall and maximum daily air temperatures reaching a minimum of 5° C. Significant movements of A. maculatum coincided with rainfall and maximum daily air temperatures of at least 10° C. A. jeffersonianum preceded A. maculatum to the breeding site. Males of both species preceded females. The mark-recapture estimate of A. maculatum is 67 males and 25 females. …


Diet Composition Of Large Striped Bass (Morone Saxatilis) In Chesapeake Bay, John F. Walter, Hebert M. Austin Jan 2003

Diet Composition Of Large Striped Bass (Morone Saxatilis) In Chesapeake Bay, John F. Walter, Hebert M. Austin

VIMS Articles

Large (>458 mm) striped bass (Morone saxatilis) are dominant predators in Chesapeake Bay. In recent years, the Chesapeake Bay stock of striped bass has increased dramatically, raising concerns about their predatory impact and their forage requirements. In response to these concerns and the need for more recent ecological studies, this investigation Was conducted to characterize feeding habits of large striped bass in Chesapeake Bay. Stomach contents from 1225 striped bass from 458 to 1151 mm TL were examined in the spring and fall of 1997 and 1998. Striped bass consumed 52 different species of vertebrates and invertebrates; however, only …